Question

1. the atomic number tells you the number of _______________ in one atom of an element. it also tells you the number of _____________ in a neutral atom of that element. the atomic number gives the \identity\ of an element as well as its location on the periodic table. no two different elements will have the _______ atomic number.

Explanation:

1. In atomic structure, the atomic number is defined as the number of protons in the nucleus of an atom. So the first blank is "protons".
2. In a neutral atom, the number of electrons is equal to the number of protons (to balance the positive charge of protons with the negative charge of electrons). So the second blank is "electrons".
3. Each element has a unique atomic number. No two different elements share the same atomic number. So the third blank is "same".

Answer:

First blank: protons
Second blank: electrons
Third blank: same